Product Description
Cummins 4376091 OEM Lower Engine Gasket Kit – ISB 6.7L (2013–2018)
The Cummins 4376091 OEM Lower Engine Gasket Kit is the complete genuine Cummins sealing solution for servicing or rebuilding the lower end of 2013–2018 ISB 6.7L Cummins diesel engines. Designed to meet factory specifications, this kit includes the critical gaskets, seals, O-rings, and sealing components required to properly reseal the bottom end of the engine during repairs or overhaul procedures. Genuine Cummins components ensure proper fitment, leak-free performance, and long-term durability.
Whether you're replacing an oil pan gasket, servicing the front cover, repairing oil leaks, or performing a complete lower-end rebuild, the 4376091 gasket kit provides the OEM-quality sealing components trusted by professional diesel technicians and engine builders. Using genuine Cummins parts helps maintain reliability while reducing the risk of premature leaks and sealing failures often associated with lower-quality aftermarket alternatives.
Features
- Genuine Cummins OEM lower engine gasket kit
- Designed specifically for 2013–2018 ISB 6.7L Cummins engines
- Includes essential lower-end gaskets, seals, and O-rings
- Ideal for engine rebuilds and lower-end resealing projects
- Helps prevent oil leaks and crankcase sealing issues
- Factory-quality materials and sealing components
- Direct replacement for original Cummins lower gasket package
- Trusted by professional engine builders and diesel technicians
- OEM fit, finish, and durability
- Engine serial number verification recommended before ordering
Fitment
- 2013–2018 Ram 2500 6.7L Cummins
- 2013–2018 Ram 3500 6.7L Cummins
- 2013–2018 Ram 4500 6.7L Cummins
- 2013–2018 Ram 5500 6.7L Cummins
- ISB 6.7L Cummins commercial and vocational applications
- EPA13 ISB 6.7L engine platforms
Note: Always verify fitment using your engine serial number (ESN) before ordering. Some Cummins engine applications may require different gasket kits depending on engine configuration and production date.
What's Included
- OEM Cummins lower engine gasket kit
- Oil pan sealing components
- Front structure and accessory cover gaskets
- Rear sealing components
- Oil cooler and oil system gaskets
- Factory O-rings and sealing washers
- Lower engine service seals and gaskets
Specifications
- Manufacturer: Cummins Genuine Parts
- Part Number: 4376091
- Component Type: Lower Engine Gasket Kit
- Engine Platform: ISB 6.7L Cummins
- Fitment Years: 2013–2018
- OEM / Aftermarket: Genuine OEM Cummins
- Application: Lower Engine Rebuild and Reseal
- Contents: Gaskets, Seals, O-Rings, Sealing Washers
- Oil Pan Gaskets Included: Yes
- Front Cover Gaskets Included: Yes
- Rear Engine Sealing Components Included: Yes
- Engine Serial Number Verification: Recommended
- Approximate Shipping Weight: 4.5–8.2 lbs Depending on Packaging
Cross Reference Numbers
4376091, Cummins Lower Engine Gasket Kit, ISB Lower Gasket Set, M4376091, M-4376091, OEM Cummins Lower Engine Seal Kit
FAQ
What does the Cummins 4376091 gasket kit include?
The kit includes the lower engine sealing components required for service and rebuild work, including oil pan gaskets, cover gaskets, O-rings, seals, sealing washers, and related lower-end engine sealing components.
Is this a genuine Cummins OEM gasket kit?
Yes. The 4376091 is a genuine Cummins OEM lower engine gasket kit designed to meet factory fitment and sealing specifications.
Will this fit all 6.7L Cummins engines?
No. This kit is intended for 2013–2018 ISB 6.7L applications. Engine serial number verification is recommended before ordering to ensure proper compatibility.
When should I replace the lower engine gasket kit?
The gasket kit should be replaced during lower-end engine repairs, oil leak repairs, oil pan removal, front cover service, bearing work, or complete engine rebuilds.
Does this kit include the rear main seal?
The exact contents should be verified by engine serial number and application. Many lower-end service procedures recommend replacing the rear main seal whenever the lower engine assembly is disassembled.
Why choose a genuine Cummins gasket kit over aftermarket options?
Genuine Cummins gasket kits are manufactured to OEM specifications for proper fitment, material quality, durability, and long-term sealing performance.
